Apparatus for burning liquid fuel.



W. E. OAKLEY.

APPARATUS EUR BURNING LIQUID FUEL.

APPLGATION FILED APR. 5, 1911.

Patented July 14, 1914.

m1111111 una MZhanEasley @MQ forney WILLIAM E. OAKLEY, OF ASTORIA, NEW Y ENGINEERING COMPANY, OE ASTORIA Y leading v2. Each of the passages 3 UNITED sTATEs PATENT OFFICE. Y

YORK- Application'led April 5, 1911. SerialiNo. 619,074.

'specification of Lettersratn't.

OEK, AssIGNOR TO OAKLEYv EOUNDNY AND NEW YORK,- a CORPORATION OE NEW APPARATUS FOR BURNING LIQUID FUEL.

Patented July 14, 1914,

T0 all whom it may concern:

Be it known that I, WILLIAM E. OAKLEY, a citizen ofthe United States, residing at Astoria, in the county of Queens and State f New York, have invented a new and useful Improvement in Apparatus for Burning Liquid Fuel, of specification.

My invention relates to improvements in an apparatus -or burning liquid fuel, in which the fuel is burned in open pans over which currents of air pass, carrying llame and heated air wherever it is desired to apply the heat generated bythe burning liquid fuel.' In the present instance the pans are shown in proper position to allow the currents of heated air to be conducted through the `tlues of a boiler, or into the heating chamber oi' a furnace for melting metal.

The objects of my invention are to provide means for determining the amount ,of hea-t generated by the burner by automatically controlling the supply of liquid 'fuel to the pans and the supply of air above the pans, and thereby 'regulating the relative supply of fuel and oxygen to the burner, thereby controlling the combustion of liquid fuel and the heat generated-by the burner.

I attain these obj illustrated in the accompanying drawing, showing a vertical sectional view of a portion of a furnace equipped withv my improved apparatus for burning liquid fuel, and showing, also in section, the apparatus for automatically controlling the flow of liquid fuel to the burner.

In the accompanying drawing, 1 is the front wall of a combustion chamber 2, which may Vcommunicate with another chamber, not/shown, to which it is desired to apply heat. in the passages 3 'of the wall 1, the pans being supplied with liquid fuel by a pipe 5 shown, and delivering thefuel into the topmost pan G. delivered byan overflow pan 8, which communicates by an overflow' pipe 9 with the lowest 'an 10. Above the pans is a passage 11 designed solely for the admission of air to the' combustion chamber and the passage 11 are provided with-a--hing'ed door 12 by The penwhich the following is a` ectsby the mechanism` Fuel pans 6, 8 and 10 are provided` from a source-of liquid fuel, not` -amount of fuelnecessary in ing and closing of kthese hinged doors is aul tomatically regulated by the same ap aratus which controls the supply of liqui 'fuel' to the pans, as will be explained hereafter.

A tank 13 is provided, connected at the bttom with the bottom of the lowest .pan 10, *'1

so that the level oi? the liquid fuelin the tank 13 and in the lowest pan 10 will always be the same. Supported by the liquid fuel n1 the tank 13 is afloat 14, preferably 1101-' low, andattached atl its to to a lever 15 pivoted atl. Pivoted at 1 On the arm 18,v attached to the side of the tank 13,' is'a second lever 19, on l nected with the lever 15 by the link- 21 'and the other end 22 of which is connected by a rod 25 'with the gate valve 23-in` the'liquid fuel supply pipe 5.

Elevation of the float 14 by the liquid fuel in the tank 13 will raise the level` 1 5 and the end 2O of the lever 19, thereby lowering the end 22 and closing the gate'valve 23 in the liquid fuel supply pipeI 5. In this manner.

the supply of liquid fuel through the pipe 5 is dependent upon the amount of liquid fuel in the lowest fuel pan 10, the level of Which, is coincident with the level of the liquid :fuel in the tank 13. 1

Variation .in the. displacement of fuel by the float I4 and', therefore, in the ele-` vation of the float, is obtained in Yfthe following manneriz--A counterbalance wei ht 24 is .provided on ie lever 19 on'v the 'ot er side of the pivot 17 from the lioat 14. This weight is adjustable toward 'and away from the pivot 17, therefore increasing or dimin-l ishing, by thedilerence in leverage, its ef feet on the displacement of fuel by the float 14 and, therefore, its effect on 'the elevationof the float. rIhis varies the level of the liquid fuel in the tank 13 necessaryjto the amount of fuel in the lowest pan 1'0 "when the gate valve 23 closes. In the drawing the weight is shown in its position nearest .to the pivot 17, in which position the eliect'of the weight is such that the displacement of'fuel by'thellcat will be a maximum, the normal level of the fuel in the tank 413 and in the pan 10 will behighest', andthe thetank 1,3 and pan to close the valve 23 Will be. greatest. This amount of fuel is shown in the tank 13, so that in the drawing the gate is represented yinx/ts jclosed position. As the amountl f'fuel i'n the fuel' pans is diminished by burning, the level in the. lowest pan-"'10 and? tank l3'is lowered and the float ingfthe Weight 24 toward the end `22 of the" lever 19lessens the displacement of the float 14;,thereby reducing the amount of liquid fuel necessary to closethe valve and so lowering vthenormal level of fuel in the tank land lowest-pan- 10. Thelength of the -lever l9`beyond the Divot 17' is arranger so that if the Weight 24C is in thenosition shown by `dotteddines in the drawing on the end ofthe lever 19the level of the fuel in the tank li3"is that of the lower ofthe two dotted lilies connecting' the tanl; 13 and pan 10,

under which conditions'thereis no fuel in the'pan 10.` 'In thisV Way'l provide adjustable apparatus forautomatically controllingv the supply of liquid fuelto the fuel pans. The supply of oxygen to the combustion chamber yIy also automatically control by'jan apparatus which is manually adjustableL regulating the relative amounts of lopening of `the'hinged doors' 12, which 'apparatus is connected vvithlthe float 14 and operated simultaneously with the gate valve 2.3.@A Thisfapparatus consists oflra level` 26 pivoted at 27 above thehingeddoois 12 yof ver 26is connect-'eid chains. The chain 29 connects the end 28-ofrthe Ilever 26 with the door 1,72 for thefpassage' 1,1, andthe chain 30 forms the connection between 'the' doors of the passages 3 andthel 'end 28 ofthe lever. ljlloolcsl are provided' for the-chains connecting lthe hirigeddoo'rs of each of tlr v `1ssaggenfays,A `thereby vfa'llmving therseparate adjustmentof each door to `vary the amount' of the 'opening' ,for each passageway 'and the admission of air to thecombustion chamber.

,the adjustment of the 'chains 29 and 30 toI vary `their effective lengths, the' time of opening lof the' doors' connected to said chains ras'fwfell as the amount'of opening of said doors, caiibe varied. For example, by

leiigtliening, the .,chain" 29 so that 1n 'the closed lposition of the door connected thereto aportiou of the said' chain lies'slack, the opening' 4of ,said 'door will. be later than the pppn-ing of the doors' connected to the chain 39a the'said chain 3Q does not lie slack in the closed position of the doors.

trolled together by my apparatus bv the elevation of the float lfl which is varied by the level of the fuel in the lowest pan 10,

'lherelative supply of fuel and oxy'fgen is varied by adjusting the weight 2t on. the le A ver'19 to change the amount of liquid fuel -admitted to the fuel pans e and hence the amount of fuel supplied to the burner, or by varying the amount of opening4 of the doors'12 by adjusting the positions of the hooks 31 to change the amount of oxygen admitted to the combustion chamber.

I thus provide means for varying or reg-- ulating the supply of fuel to the combustion c iamber and separate means for varying or regulating' the supply of (.xygen 'to the combustion chamber, these means being controlled and adjusted simultanclglasly by the float. The elevation of the float automatically regulated dey changes in the level of the fuel Within the tank 13 and, inasmuch as this'level is directly controlled by the level of 'the fuel in the pan 10, the level of theloat is also directly controlled by the elevation of the fuel in this pan. The means which regulates' the supply of oxygen to the combustion chamber is also n'ianually adjustable to vary the relative supply of oxygen to'each individual fuel pan. The means which regulates the supply of fuel to the fuel pan automatically controlled by the float and, therefore, by changes in the level of the fuel in the fuel pan 10. The action of this automatic controlling means is also manually adjustable by changing the position of the weight 24,

I claim,

1 In an apparatus of the class described, the combination with a liquid fuel pan, and a passage for air above said fuel pan, of means responsive to changes in the level of fuel in said pan for controlling' the supply of fuel to said pan. and for controlling the flow of air through said passage.

2. In an apparatus of the class described, the combination with a liquid fuel pan and a passage for air above said fuel pan, of adjustable means for controlling the supply of fuel to said pan, said means being' responsive to changes in the level of fuel in said pan, and means actuated by the fpcl Asupply controlling means for opening and closing said passage.

3. an apparatus of the class described,l

to changes in the level of fuel in said pan,

and manually adjustable means actuated the fuel suppl ing and closing said passage.

4. In an apparatus of the class described, the combination with a liquid fuel pan and a. passage for Yair above said fuel pan, of a tank for liquid fuel in communication with said pan so that the level of fuel in both tank and pan Will be the same, a float in said tank, means for controlling the supply of fuel to said pan, means for controlling the flow of air through said passage, and means actuated by the oat for operating the fuel and air controlling means.

5. In an apparatus of the class described,

a combustion chamber, an air passage lead ing thereto; means for opening and closing said air passage, a liquid fuel pan below said passage, means for controlling the level of the fuel in said pan, and means actuated by said controlling means for operating said opening and closing means.

6. In an apparatus of the class described, the combination .with a liquid fuel pan, of an air passage separate from said-fuel nan.

y controlling means foropenand means arranged to open and close said aifij passage, said means being controlled in accordance with the level of fuel in said fuel pan.

7. In an apparatus of the class described, the combination with liquid fuel pan, of an air passage above said fuel pan, a second air passage Siep-Strate from said fuel pan, separate means arranged to open and close said air passages, said means being arranged to be operated siuuiltaneously, and means controlled in accor-dante with the level of fuel in said fuel pan for actuating both of said opening and closing` means.

8. ln an apparatus of the class described, ,the combination with liquid fuel pau, of a passage for air above said fuel pan and a second passage forl air separate from said fuel pan, means for controlling the supply of fuel to said pan, saifl means being also `arranged to autouaatimiily open and close .said passages either separately or simultaneously as desired` with the ope ation of said means determined in accordance with the level of fuel. in said fuel pan.

Dated this twenty ninth day of March 1911.

lllitnesses Lincoln: Corinna, J. H. EARL. 

